Mama-mia, papa-ria! Papa's is a university hot spot for late night greasy cravings. They have a wide selection of pizza, many named after Hollywood stars, like the Al Pacino. They also have a great selection for vegetarians and even a cheeseless pizza if that's your cup of tea.
Papa behind the counter is super friendly, which is quite refreshing after a long day at work. There's a small tv in the back of the store, where you can sit (i think there's about 6 four seat tables), the tables themselves don't seem to be regularly cleaned - I think there the do-it yourself place, and the chairs aren't overly comfortable, but this isn't the type of place you sit and chill for a few hours.
Overall their pizzas are pretty good. They aren't the greatest. Each slice is massive, a quarter of the pizza. The sauce is pretty good, but I've had better dough/crust elsewhere.
For $7 you can get a slice of pizza and a beer, not bad for dinner! Each slice is around $4 on its own.